In my JBPM application if any data missing during data processing. Script task throw an error o else execute the process successfully. But the problem is that I can't catch the error event with jbpm "Error Event". So, please help me out. Please help me out on this.
if you would like to make use of catching events in bpmn2 you need to operate on the same lvel if thrown them - throw events from the process and not technical exception from script task. Have a look at this process for an example.